What potential pitfalls should be avoided when automating the loading of images from a directory and inserting them into templates using PHP?

One potential pitfall to avoid when automating the loading of images from a directory and inserting them into templates using PHP is not properly sanitizing user input to prevent security vulnerabilities such as directory traversal attacks. To avoid this, always validate and sanitize file paths before using them in your code. 

// Validate and sanitize file path before using it
$imageDirectory = 'path/to/images/';
$imageName = filter_var($_GET['image'], FILTER_SANITIZE_STRING);

// Check if the image file exists in the directory
if (file_exists($imageDirectory . $imageName)) {
    // Insert the image into the template
    echo '<img src="' . $imageDirectory . $imageName . '" alt="Image">';
} else {
    echo 'Image not found';
}

Keywords

file_exists scandir image file types file permissions template rendering

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